What the order code resolves to
The 1FK7043-7AH71-1...: The Siemens 1FK7043-7AH71-1 is a SIMOTICS S 1FK7 High Dynamic synchronous servo motor, 3.1 Nm at 100K winding temperature, 4500 rpm rated speed, and 1.23 kW continuous power when naturally cooled, with IM B5 mounting and a rotatable power/signal connector plug. The connector rotates 270° on the housing, which matters in tight cabinet routings where the cable exit has to clear the gearbox or the encoder harness without a right-angle boot.
Why the headline numbers drive the fit
3.1 Nm at 100K and 4500 rpm put this firmly in the compact high-dynamic servo class — sized for feed axes, indexing tables, and small packaging or converting drives where the cycle demands short accel ramps more than long constant-torque holds. Natural cooling (no external fan) means the 1.23 kW rating assumes a free-shaft, non-enclosed mounting surface; derating applies once the motor is boxed into a sealed gearbox housing or stacked next to a VFD with restricted airflow.
Lifecycle stage and what it means on the dock
Think landed, not list — for an EOL servo motor the bill of materials is the unit price plus the import paperwork, the certification copies for the customs file, and the lead-time cushion if the dock needs the motor before a line-down escalation.